n! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 51: | \[51!-1\] | 53 × 90247 × 287282678119<12> × 19967303570082360959561<23> × 56533717390894655271258971<26> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 51: | \[51!-1\] | 53 × 90247 × 287282678119<12> × 19967303570082360959561<23> × 56533717390894655271258971<26> |